Wheel Bearing - Subaru Legacy 2003 Service Manual

PERIODIC MAINTENANCE SERVICES

24.Wheel Bearing

A: INSPECTION
1. FRONT WHEEL BEARING
NOTE:
Inspect the condition of front wheel bearing grease.
1) Jack up the front of vehicle.
2) While holding front wheel by hand, swing it in
and out to check bearing free play.
3) Loosen wheel nuts and remove front wheel.
4) If bearing free play exists in step 2) above, at-
tach a dial gauge to hub and measure axial dis-
placement in axial direction.
Service limit:
Straight-ahead position within 0.05 mm
(0.0020 in)
5) Remove bolts and self-locking nuts, and extract
transverse link from front crossmember.
6) While lightly hammering spring pin which se-
cures SFJ to transmission spindle, remove it.
7) Extract SFJ from transmission spindle. <Ref. to
DS-17, Front Axle.>
8) While supporting front drive shaft horizontally
with one hand, turn hub with the other to check for
noise or binding.
If hub is noisy or binds, disassemble front axle and
check condition of oil seals, bearing, etc.
(A)
(B)
(C)
(D)
(A) Inner oil seal
(B) Snap ring
(C) Bearing
(D) Housing
(E) Outer oil seal
(F) Hub bolt
(G) Hub
WHEEL BEARING
(F)
(G)
(E)
PM-00061
PM-40
2. REAR WHEEL BEARING
1) Jack up the rear of vehicle.
2) While holding rear wheel by hand, swing it in and
out to check bearing free play.
3) Loosen wheel nuts and remove rear wheel.
4) If bearing free play exists in step 2) above, at-
tach a dial gauge to hub assembly and measure
axial displacement in axial direction.
Service limit:
Straight-ahead position within 0.05 mm
(0.0020 in)
5) Remove the DOJ of rear drive shaft from rear dif-
ferential. <Ref. to DS-34, Rear Drive Shaft.>
6) While supporting rear drive shaft horizontally
with one hand, turn hub assembly with the other to
check for noise or binding.
If hub assembly is noisy or binds, disassemble rear
axle and check condition of oil seals, bearings, etc.
( A )
(A) Hub unit
(B) Hub bolt
(C) Hub
( B )
( C )
PM-00137